Agricultural machine



Jan. 25,1927. E. BRNING 1,615,679

AGRI CULTURAL MACHINE Filed Aug. 20', 192e wifnes-ses: v l'ybven'fa.rw am l LM tto rn/ey Patented Jan. 25, 1927.

UNITED S'ITES ERNST IBRNING, F IBADINGEN, GERMANY.

AGRICULTURAL MACHINE.

Application led August 20, 1926, Serial No.

This invention relates to agricultural machines and especially to a machine in which a plow and a harrow are united, and it has for its object to ensure, notwithstanding the mutual movability of the implements necessary for the good working ot the ground, such secure connection of said two implements that no special attention is required for the harrow, and any danger from the harrow being liung in lateral directions being avoided.

An embodiment of the invention is illustrated, by way of example, in the accompanying drawing in which:-

Fig. l shows in side elevation a plow and harrow combined.

Fig. 2 is a plan view of Fig. 1.

L is the beam of a one-shareor two share plow. b is a transverse tube the end c of which is fixed on the plow beam a adjustable in vertical direction. The end 0 of the transverse tube Z) is bent downward at an angle to the tube b. On the transverse tube Z) two curved bars ol are mounted so that they can be shifted in lateral directions and rotated through any desired angle around the transverse tube b. The two bars CZ are spaced by two tubular spacers g and h and connected with one another by bolts c, f located in said tubular spacers. rlihe curved portions of the bars Z have holes z', designed to receive a cotter lo. The clip-shaped front end Z of each bar (Z grips around the transverse tube ZJ and is iXed on said tube by screws m. A rod n mounted with its eyeshaped end on the transverse tube b is oscillatably enclosed between said two bars el and carries in its rear 4end a segment o which has holes p arranged on an are of a circle the centre .of said circle having a pivot pin g iXed in said segment.

A small size harrow r has a forwardly projecting double arm s which has holes designed to be -brought into register with any of the holes p of the segment o. The double arm is pivotally fixed on the segment 0 by the pivot pin g, a cotter inserted through two opposite holes of the double arm and through one hole p of segment o 130,481v` and in Germany February 20, 1926.

serying to hx the harrow r on the tubular 5o roc n.

The agricultural machine described combines a plow and a harrow, which latter, its position having once been adjusted with regard to the plow, is adapted to swing in v ertical directions but not in lateral directions.

It is evident that :tor certain elements described other equivalent elements might be substituted without exceeding the limits of 6o the present invention.

I claim l. An agricultural machine combined of a. plow and of a harrow, comprising in combination with the plow and with the harrow, a plow beam, a transverse tube adjustably fixed at the one end of said plow beam,

a rearwardly extending rod oscillatably mounted on said transverse tube, two bars adjustably fixed on said transverse tube at lo the right and left of said rod and having holes in their curved rear portions, a cotter in the holes of said curved bars to support said rod, and a harrow iXed to the rear end of said rod.

2. An agricultural machine combined of a plow and of a harrow, comprising in combination with the plow and with the harrow, a plow beam, a transverse tube, means for removably ixing 1one end of said trans- 80 verse tube on said plow beam, a straight rod having an eye at the 'front end oscillatably mounted on said transverse tube, two bars having each a curved rear portion with holes and arranged one at the right and the other at the left of said straight rod, a clip at the front end of each bar, tubular spacers the one between the front ends of said curved bars and the lother between the rear ends of said curved bars, two transverse bolts one in the front ends and the other in the rear ends of said curved bars and traversing each one of said spacers, a cotter in two opposite holes of the curved portions of said bars and supporting said 98 straight rod, a segment lined on the rear end o said rod and having holes arranged lon an arc of a circle, a pivot pin in said of said segment to fix said harrow to said straight rod so that said harrow can move With regard to said plow in vertical direcl0 tions but not in lateral directions.

In testimony whereof I atti); my signature.

ERNST BRNING 

